Paediatrics (RCH) - Research Publications

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http://hdl.handle.net/11343/199

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Adverse experiences in early intimate relationships and next-generation infant-mother attachment: findings from the ATP Generation 3 Study

Opie, J ; Mcintosh, J ; Olsson, CM ; Greenwood, CJ ; Letcher, P ; Tan, E ; Opie, JE ; Booth, A ; Mcintosh, J ; Olsson, CA (WILEY, 2023-12)

Abstract Chronic insecurities that emerge from adverse experiences in early intimate partner relationships in adolescence and emerging adulthood can have profound impacts on mental health and well‐being. Less clear is the extent to which these experiences for parents impact subsequent relationships within and across generations. We examine the extent to which secure, dismissing, pre‐occupied, and fearful intimate partner relationships in adolescence and emerging adulthood, well before becoming a parent, are associated with next‐generation patterns of attachment between mothers and infant offspring. Data were drawn from a nested study of infant–mother attachment (n = 220) within the Australian Temperament Project Generation 3 Study (N = 1167, est. 1983). Intimate partner relationships in adolescence and young adulthood were assessed by self‐report at 23–24 years of age. Over a decade later, infant–mother attachment security was assessed at 12 months post‐partum. Young adult intimate partner relationships defined by high levels of fearful, pre‐occupied, and dismissing attachment styles were reported in 11%, 17%, and 38% of young mothers, respectively. Increases in fear of intimacy in relationships were associated with an increase in the odds, by around 50%, of infant–mother insecure attachments (vs secure; OR = 1.56, 95% CI = 1.07, 2.28) and disorganised attachments (vs organised; OR = 1.49, 95% CI = 1.00, 2.22). A mother's self‐reported history of fear of intimacy within young adult relationships predicts later insecure and disorganised mother–infant attachments. Guidance and greater support for young people navigating their earliest intimate relationships may not only prevent adverse relational experiences at the time but also on becoming a parent. Findings have relevance for family and infant mental health therapies. Translating these findings into supported conversations may help prevent infant–mother attachment difficulties, or later repair them, through validation of the lingering effects of early fear of intimacy and empowerment of parents to prevent next‐generation infant experiences of distrust.
Is Neighborhood Nature an Ecological Precursor of Parenting Practices, Infant-Parent Bonding, and Infant Socioemotional Function?

Mygind, L ; Greenwood, C ; Letcher, P ; Mavoa, S ; Lycett, K ; Wang, Y ; Flensborg-Madsen, T ; Bentsen, P ; Macdonald, JA ; Thomson, K ; Hutchinson, D ; Olsson, CA ; Enticott, PG (SAGE PUBLICATIONS INC, 2023-05)

Nurturing relationships are crucial for adaptive child development. The objectives of the study were to investigate whether nature availability was associated with early nurturing parenting practices, mother-infant bonding, and infant socioemotional function. Data were from the Australian Temperament Project ( n = 809 infants to 515 parents residing in Victoria, Australia) and were linked cross-sectionally to residential greenness (i.e., Normalized Difference in Vegetation Index). There were no observable associations between residential greenness within a 1,600 m network radius and parenting practices, mother-infant bonding, or infant socioemotional function. The findings were largely corroborated by sensitivity analyses (i.e., NDVI within 100, 250, 500, and 1,000 m and distance to park). Shorter distances to a park were associated with less hostile parenting. More residential greenness (1,000 and 1,600 m) was associated with stronger father-infant bonding and more hostile parenting amongst the most stressed parents in exploratory analyses. Residential greenness might be a socioecological precursor for father-infant bonding.
Continuities in maternal substance use from early adolescence to parenthood: findings from the intergenerational cohort consortium

Thomson, KC ; Greenwood, CJ ; Letcher, P ; Spry, EA ; Macdonald, JA ; McAnally, HM ; Hines, LA ; Youssef, GJ ; McIntosh, JE ; Hutchinson, D ; Hancox, RJ ; Patton, GC ; Olsson, CA (CAMBRIDGE UNIV PRESS, 2023-04-08)

Background This study assessed the extent to which women's preconception binge drinking, tobacco use and cannabis use, reported prospectively in adolescence and young adulthood, predicted use of these substances during pregnancy and at 1 year postpartum. Methods Data were pooled from two intergenerational cohort studies: the Australian Temperament Project Generation 3 Study (395 mothers, 691 pregnancies) and the Victorian Intergenerational Health Cohort Study (398 mothers, 609 pregnancies). Alcohol, tobacco and cannabis use were assessed in adolescence (13-18 years), young adulthood (19-29 years) and at ages 29-35 years for those transitioning to parenthood. Exposures were weekly or more frequent preconception binge drinking (5 + drinks in one session), tobacco use and cannabis use. Outcomes were any alcohol, tobacco and cannabis use prior to awareness of the pregnancy, after awareness of pregnancy (up to and including the third trimester pregnancy) and at 1 year postpartum. Results Frequent preconception binge drinking, tobacco use and cannabis use across both adolescence and young adulthood were strong predictors of continued use post-conception, before and after awareness of the pregnancy and at 1 year postpartum. Substance use limited to young adulthood also predicted continued use post-conception. Conclusions Persistent alcohol, tobacco use and cannabis use that starts in adolescence has a strong continuity into parenthood. Reducing substance use in the perinatal period requires action well before pregnancy, commencing in adolescence and continuing into the years before conception and throughout the perinatal period.
Illicit Substance Use and Harm in Young Adulthood: the Role of Substance Use in Close Relationships and Individual Social Skills

Greenwood, CJ ; Letcher, P ; Macdonald, JA ; Hutchinson, DM ; Youssef, GJ ; Toumbourou, JW ; Spry, E ; Sanson, A ; Cleary, J ; Olsson, CA (Springer Science and Business Media LLC, 2023-01-01)

Abstract To examine illicit substance use across young adulthood and explore the extent to which social skills moderate the relationship between use and harm. 1,404 (761 women) from the Australian Temperament Project (est. 1983) participated across young adulthood (age 19–20, 23–24, and 27–28 years). Measures included self-reported illicit substance use/harm and social skills (i.e., assertion, empathy, responsibility, and self-control). The number and type of illicit substances used changed across young adulthood. Greater illicit substance use was associated with peer (OR = 4.96) and partner use (OR = 3.60). Moderation analyses suggested the risk relationship between the number of illicit substances used and harm was lower in those with high levels of assertion/self-control (ORassertion = 2.34, ORself-control = 2.60) compared to low levels (ORassertion = 4.43, ORself-control = 3.72). Evidence based programmes designed to strengthen individual social skills for young adults may play a role in protecting against the adverse effects of illicit substance use.
Factor structure of the Mini-Maternal Behavior Q-Sort and associations with infant attachment: Informing precision in research and intervention

Booth, AT ; Greenwood, CJ ; Youssef, GJ ; McIntosh, JE ; Nguyen, T ; Letcher, P ; Edwards, B ; Hutchinson, DM ; Sanson, A ; Olsson, CA ; Macdonald, JA (WILEY, 2023-03)

We examined the factor structure of parental sensitivity to infants as assessed by the Mini-Maternal Behavior Q-Sort (Mini-MBQS), a 25-item short-form of the original 90-item MBQS. We aimed to: (1) identify latent factors of the Mini-MBQS; and (2) validate each factor by testing associations with infant attachment classifications. Data on parent-infant dyads (n = 313; 222 mothers with 281 children, 29 fathers with 32 children) were drawn from a three-generation Australian cohort study. Exploratory Factor Analysis and Exploratory Structural Equation Modelling examined the structure of the Mini-MBQS. Two latent Mini-MBQS factors were identified, requiring 8 of 25 original items: (1) Attention and Responsiveness and (2) Contingency in Interactions. Infants with insecure attachment classifications had parents with lower sensitivity across both factors relative to infants classified secure. In particular, infants with resistant attachment classifications had parents with notably low Contingency in Interactions scores. Infants with disorganised attachment classifications had parents with the lowest relative sensitivity across both factors, and in these dyads Attention and Responsiveness scores were especially low. Results provide an empirically derived factor structure for the Mini-MBQS. Two subscales, each with significant infant attachment associations, may improve precision in clinical intervention and research translation.
The lived experience of stress for parents in the context of COVID-19-related disruption

Painter, FL ; Booth, AT ; Letcher, P ; Olsson, CA ; McIntosh, JE (WILEY, 2023-10)

Abstract Objective This mixed methods study sought to explore the lived experience of stress for parents of young dependent children during COVID‐19 lockdowns in Australia. Background Public health restrictions implemented during the COVID‐19 pandemic disproportionately burdened parents as they balanced novel and competing role demands. Despite growing research on impacts to parent mental health, much less is known about parenting at the experiential level during this period. Method Data were derived from free‐text survey responses collected during 2020 in an Australian population cohort study and analyzed in a mixed methods approach focusing on descriptive phenomenology. Twenty‐eight parent accounts of either ‘extreme’ or ‘minimal’ stress experiences were subject to phenomenological analysis of the individual, interpersonal, and contextual factors associated with each stress category. Results Three themes defined ‘extreme’ stress experiences: inadequacy of resources to cope, perceived lack of control, and compounding stressors. Two themes characterized ‘minimal’ stress experiences: feeling well resourced to cope and the absence of significant disruption to everyday life. Conclusion Findings highlight three targets in particular: compounding stressors, family relationships, and gendered differences in parental stress. Implications Intervention efforts should focus on better resourcing parents experiencing accumulating stressors through provision of individual and relational support and by addressing the higher burden experienced by mothers compared with fathers across pandemic related lockdowns.
Parental history of positive development and child behavior in next generation offspring: A two-cohort prospective intergenerational study

Letcher, P ; Greenwood, CJ ; McAnally, H ; Belsky, J ; Macdonald, JA ; Spry, EA ; Thomson, KC ; O'Connor, M ; Sligo, J ; Youssef, G ; McIntosh, JE ; Iosua, E ; Hutchinson, D ; Cleary, J ; Sanson, A ; Patton, GC ; Hancox, RJ ; Olsson, CA (WILEY, 2023-01)

This study examined whether positive development (PD) in adolescence and young adulthood predicts offspring behavior in two Australasian intergenerational cohorts. The Australian Temperament Project Generation 3 Study assessed PD at age 19-28 (years 2002-2010) and behavior in 1165 infants (12-18 months; 608 girls) of 694 Australian-born parents (age 29-35; 2012-2019; 399 mothers). The Dunedin Multidisciplinary Health and Development Parenting Study assessed PD at age 15-18 (years 1987-1991) and behavior in 695 preschoolers (3-5 years; 349 girls) and their New Zealand born parents (age 21-46; 1994-2018; 363 mothers; 89% European ethnicity). In both cohorts, PD before parenthood predicted more positive offspring behavior (βrange = .11-.16) and fewer behavior problems (βrange = -.09 to -.11). Promoting strengths may secure a healthy start to life.
The Legacy of Mental Distress Following Physical Illness in Childhood: Findings From the Australian Temperament Project

Olsson, CM ; Letcher, P ; Greenwood, CJ ; Moore, K ; Olsson, CA (OXFORD UNIV PRESS INC, 2023-01-12)

OBJECTIVE: Childhood physical illnesses have been associated with heightened risk for mental health problems in adolescence and young adulthood; however, little is known about the natural history of this relationship. Here, we examine the nature of mental health adjustment to illness from diagnosis in childhood into adolescence and young adult life. METHODS: Data were drawn from a large population-based cohort. Parents reported whether their child had a physical illness at 5-6 and 7-8 years and whether they believed their child was so sick it was thought they might die. Depression and anxiety symptoms were reported by parents (for children 7-10 years) and self-reports (11-28 years). RESULTS: A total of 1,001 (56%) parents reported their child had a physical illness. Of these parents, 143 (8%) believed their child might die. Findings indicated there was some evidence of higher levels of depressive and anxious symptoms across late childhood and into early adolescence for those reporting a physical illness in childhood. A similar pattern was observed for those who were so sick it was thought they might die, although symptoms were elevated to a greater extent. CONCLUSION: Although physical illness in middle childhood is associated with higher levels of depressive and anxious symptoms, by early adolescence, these differences diminish, indicating a process of adaptation that persists into young adulthood. This suggests a potentially sensitive period of adjustment to illness for some, especially for children who it was feared might die. Additional psychosocial assessment and support may be warranted across the "acute" illness period.
Parenting Orientations in Young Adulthood: Predicting Timing of Parenthood and Quality of Postpartum Caregiving

Macdonald, JAA ; Collins, S ; Greenwood, CJJ ; Youssef, GJJ ; Thomson, KCC ; Letcher, P ; Spry, EAA ; Olsson, CAA (AMER PSYCHOLOGICAL ASSOC, 2023-04)

Most but not all adults become parents, yet it remains unclear which characteristics indicate an orientation toward parenting. The aims of this study were to (a) distinguish profiles of individual and interpersonal resources in young adults that may orient them toward parenthood and (b) investigate whether profiles predicted timing of entering parenthood, postpartum parenting behavior, and parent-infant bonding. Participants were 1,429 young people (53% female) enrolled in an Australian 39-year longitudinal study. Predictor data for latent profile analysis were collected at 23-24 and 27-28 years. Parenthood timing was designated as "early" ≤ 25 years, "on-time" > 25 years, and "not a parent" by age 37 years. Parenting outcomes were assessed at 12 months postpartum in 684 parents of 1,144 children. Four-profile classes were identified: "connected" (n = 463, 32.4%), "constricted empathy" (n = 461, 32.3%), "insecure" (n = 343, 24%), and "disconnected" (n = 162, 11.3%). Connected young adults were characterized by close ties to family of origin and peers and by identity clarity and empathy. Connected participants were more likely than those in insecure and disconnected classes to be parents by 37 years and more likely to enter parenthood "on-time" compared to "early" parenthood in the constricted empathy class. Among those who became parents, the connected class reported the strongest bonds and warmest parenting and was least anxious or hostile in parenting their infants. Findings provide insights into preconception patterns among variables that together predict reproductive timing, postpartum bonding, and quality of parenting. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
Eating and Body Image Disturbances in Adolescence and Substance Use Throughout Young Adulthood: Findings from the Australian Temperament Project

Linardon, J ; Greenwood, CJJ ; Macdonald, JAA ; Spry, EAA ; Wertheim, EHH ; Le Grange, D ; Letcher, P ; Olsson, CAA (SPRINGER, 2023-01-01)

Abstract We investigated whether eating and body image disturbances in mid-adolescence were associated with substance use in young adulthood. Participants (n = 1566) completed the drive for thinness, bulimic behavior, and body dissatisfaction subscales from the Eating Disorder Inventory during adolescence (15–16 years), and reported frequencies of substance use (tobacco, cannabis, binge drinking, other illicit substances) across young adulthood (19–20, 23–24, and 27–28 years). Adolescent body dissatisfaction was associated with a 10% increase in the rate of binge drinking and tobacco smoking, with effects being of similar magnitude in men and women, and across young adulthood. The association between bulimic behavior and tobacco smoking was strongest in the earlier years of young adulthood (19–20 years). Relationships between cannabis use, bulimic behavior, and body dissatisfaction were evident in men only. Findings highlight important targets for prevention programs, as well as focused monitoring efforts to identify individuals at risk of later substance use.

Paediatrics (RCH) - Research Publications

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